Cheap Flights from Seoul (ICN) to Washington (IAD)

View AU$682 flight on Wed, 22 Oct. 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Washington Dulles International Airport (IAD)

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Cheap Flights from Seoul (ICN) to Washington (IAD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$937 Return, found 10 hours ago
AU$937
Return
found 10 hours ago
Select United flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$937 found 10 hours ago
United
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,049 Return, found 10 hours ago
AU$1,049
Return
found 10 hours ago
Select United flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,049 found 10 hours ago
American Airlines
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,150 Return, found 10 hours ago
AU$1,150
Return
found 10 hours ago
Select American Airlines flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,150 found 10 hours ago
United
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,195 Return, found 10 hours ago
AU$1,195
Return
found 10 hours ago
Select United flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,195 found 10 hours ago
United
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,306 Return, found 10 hours ago
AU$1,306
Return
found 10 hours ago
Select United flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,306 found 10 hours ago
Air Canada
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,468 Return, found 10 hours ago
AU$1,468
Return
found 10 hours ago
Select Air Canada flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,468 found 10 hours ago
American Airlines
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,574 Return, found 10 hours ago
AU$1,574
Return
found 10 hours ago
Select American Airlines flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,574 found 10 hours ago
Asiana Airlines
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,580 Return, found 10 hours ago
AU$1,580
Return
found 10 hours ago
Select Asiana Airlines flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,580 found 10 hours ago
Air Canada
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$1,593 Return, found 10 hours ago
AU$1,593
Return
found 10 hours ago
Select Air Canada flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$1,593 found 10 hours ago
Delta
Wed, 17 Sep. - Wed, 1 Oct.
ICN
Seoul
IAD
Washington
AU$2,046 Return, found 10 hours ago
AU$2,046
Return
found 10 hours ago
Select Delta flight, departing Wed, 17 Sep. from Seoul to Washington, returning Wed, 1 Oct., priced at AU$2,046 found 10 hours ago

Find the cheapest month to fly from Seoul (ICN) to Washington (IAD)

February is typically the cheapest month to fly

From AU$1,058 - AU$1,572 per traveller.

Graph displaying average flight prices per month

Flight from Seoul to Washington route information
Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Return price
AU$936
Distance
11108 km
Average flight time
14 hours 50 mins

Your quick guide to flights from Seoul to Washington

Pick up great flights from Seoul to Washington

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seoul to Washington. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seoul to Washington that take around hours.

Find cheap flights from Seoul to Washington

From the great flight deals with prices currently ranging from AU$937 to AU$2,046, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seoul to Washington around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Washington is normally in September.

Reasons to book your flight from Seoul to Washington with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seoul to Washington across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Washington right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Seoul–Incheon Intl. Airport to Dulles Intl. Airport?
Start packing your suitcase, because round-trip journeys between Seoul–Incheon Intl. Airport and Washington Dulles Intl. Airport (IAD) start from AU$937. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Incheon Airport to Washington Dulles Intl. Airport (IAD)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Seoul–Incheon Intl. Airport to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seoul–Incheon Intl. Airport to Dulles Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Incheon Intl. Airport (ICN) to IAD?
With a flight distance of 11 200 kilometres from Seoul–Incheon Intl. Airport (ICN) to IAD (IAD), this is a long flight. Make sure you keep well hydrated and move your legs every so often.
Which airlines fly direct from Incheon Airport to Washington Dulles Intl. Airport (IAD)?
Korean Air (KE) will take you from Incheon Airport to Washington Dulles Intl. Airport (IAD) safely and reliably. Take your pick of 30 direct flights every month on this route.
Are ICN to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some of the cheapest airfares from Seoul–Incheon Intl. Airport to Washington Dulles Intl. Airport (IAD) showing up a few weeks before the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

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